Astragalus tricarinatus

Astragalus tricarinatus NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.It is endemic to California, where it can be found in the region where the San Bernardino Mountains meet the Mojave Desert and the Colorado Desert. It grows in desert scrub and expanses of rock litter amongst stands of Joshua trees. The plant is known from only one location and there were twenty individuals remaining there in 1998, when it was federally listed as an endangered species.

FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

This is a perennial herb growing in clumps up to about 25 cm (9.8 in) tall. The leaves are up to 20 cm (7.9 in) long and made up of several silvery-green hairy leaflets. The inflorescence holds 5 to 15 cream-colored flowers each about 2 cm (0.79 in) in length.

The fruit is a flat legume pod up to about 4 cm (1.6 in) long. The pod is curved and has three distinct ribs.